photosensitive seal: after being printed by laser, it is directly exposed to photosensitive materials, and then oiled for use. The imprint is stable, and it can keep the original lines of documents. It is suitable for pattern seals, cartoon seals and signature seals, and can be used repeatedly for tens of thousands of times. It is also a durable stamp-free seal, so it is also suitable for seals with large usage. The supplementary ink for photosensitive seal must be of the same brand as the original ink, otherwise the seal may be damaged due to improper use of ink. In addition, the price of stamp material of photosensitive seal machine is slightly higher than that of ordinary engraved seal, but the photosensitive seal is green and pollution-free, easy to use and can be exempted from the constraint of seal inkpad, but it is more practical for photosensitive seal oil.
Ink-back seal: Ink-back seal is a solid seal holder with built-in stamp pad. When it is used, the seal will automatically reverse and cover the stamp pad. It is a high-quality and high-grade seal with clear imprinting effect, stable structure, durability, convenient refueling and replaceable stamp pad, which is very popular among window units such as banks and hospitals. It is best to use the original water-based ink as the supplementary ink for the ink-back seal. When using the ink-back seal, pay attention to the uniform force to avoid damaging the seal bracket. The supplementary ink should first choose the same brand of water-based ink to ensure that the seal surface is not damaged.
Infiltration seal: it comes with ink, which is convenient to use and can be used repeatedly. Applicable to all kinds of department seals, such as special seal for invoices, special seal for contracts, special seal for business, special seal for customs declaration and other work seals, etc., bank seal is not applicable, and the seal of the same brand needs to be supplemented during use to ensure that the seal body is not damaged.
Horn seal: It is hard in texture, durable, and clear in imprint, and is suitable for seal. However, the horn seal has the characteristics of expanding with heat and contracting with cold, which may cause errors. Huang Mu and ox horn are natural seal materials, so it is best to assemble them with seals to avoid cracking or deformation caused by excessive shrinkage when exposed to the outside, which will affect the quality of imprinting.
copper seal: hard, made of copper or copper alloy, with high hardness, no deformation and long preservation.
Red rubber seal: easy to cover and use, with clear imprint, suitable for all kinds of department seals, such as special seal for invoices, special seal for contracts, special seal for business, special seal for customs declaration, etc. Due to the characteristics that the material expands with heat and contracts with cold, it is prone to errors and is not suitable for bank seal.
Satsuma Bento Seal: It is produced in Kagoshima Prefecture, Japan, where the climate is warm. Only in the gravel highland of Kagoshima can the Satsuma Bento with high fiber density, hardness and viscosity grow. It is a very popular printing material in Japan. Satsumoto's growth cycle is slow, and it takes more than 4 years to become a tree, so it can only be mined after it becomes a tree, so it is very precious. The mined Satsumoto needs one year's storage, natural dehydration, and then processed into one through 12 processes. Satsuma Bentuo seal has clear wood grain and delicate wood.
steel seal: steel seal is a common seal, and many people will see this seal on their graduation certificates. This seal has two dies, a female die at the top and a male die at the bottom, and the imprint covered has a concave-convex feeling.
date stamp: also known as number stamp, the special stamp holder structure enables its number or date to be changed, which is suitable for stamps with date or number to be changed, such as bank stamp and inspection stamp.
atomic seal: atomic seal-it is made of raw materials invented by American Johnson Company in 1972. Atomic seal is one of the seals widely used in business activities. It has the characteristics of beautiful appearance, clear printing surface, no need to print, no need to refuel, easy to carry and never fade, and can be used for more than 36, times.
applicable to: various department seals. For example, special stamps for invoices, contracts, business, customs declaration and other work. It is not suitable for banks to print and sign seals.
Ink-back copper seal: Ink-back copper seal is an improved product of ink-back seal. It is composed of an ink-returning seal rack and a copper sheet. The ink-returning copper seal overcomes the shortcoming that the rubber is easy to deform and swell due to long-term use of the ink-returning seal. And the shortcomings of inconvenient carrying and unclear stamping of copper seal! The ink-returned copper seal is clear and easy to carry, and it also has the characteristics that the copper seal will never deform after long-term use. If the ink-returned copper seal is damaged, it is only necessary to replace the seal shelf, instead of replacing the whole seal. Especially suitable for engraving official seals, financial seals and other seals that need to be used for a long time.
it has always been the case that wood is printed on wood. According to Sui Shu's Records of Etiquette VI, a giant "Du She Wan Ji Seal" was used in the court of Northern Qi Dynasty, which was made of wood. It's one foot two inches long and two inches five minutes wide. In the Tang and Song Dynasties, there was also a wooden rectangular seal, which was used to print the riding seam. Later generations' riding seam printing method was effective on this seal, and it was popular because of its easy manufacture, convenience and quickness. Boxwood and ginkgo wood have good elasticity and are the main materials for wooden seals. Boxwood is good for carving and beautiful, which not only helps to transport knives, but also enhances the toughness of wood. When carved, it is cut with a thin knife without removing sawdust, and the wood grain naturally closes after cutting. It is this feature that there is no need to leave a knife at the intersection of strokes when carving. Even if a knife goes straight, it will not make the sawdust fall at the intersection. There is no knife method or composition, but the lines are dull. It was also printed with sandalwood, which is abundant in the tropics and is a kind of fragrant wood. The famous sandalwood seal was used by Emperor Qianlong of Qing Dynasty. The side length of the "Emperor's Treasure" is 15.3CM and the height is 15.6CM. Its printed surface and volume are rare. Wood printing materials are favored by manual and machine carving.